Mona Rosenberg, DVM, DACVIM, Oncology

Dr. Rosenberg is the owner, CEO and Chief Oncologist at Veterinary Cancer Group. She received her DVM from UC Davis, followed by an internship and residency at Animal Medical Center in New York. She has been a diplomate of the ACVIM in Oncology since 1992. She is an active member of the Veterinary Cancer Society and SCVMA where she is a regularly sought after lecturer.

Dr. Rosenberg also heads up the medical oncology residency program at Veterinary Cancer Group.

Mary Davis, DVM, DACVIM, Oncology

Born and raised in Seguin, Texas, Dr. Mary Davis is a long-time team member and familiar face at Veterinary Cancer Group. Dr. Davis graduated from Texas A&M College of Veterinary Medicine, which she followed up with an internship in small animal medicine and surgery at a hospital and cancer center. Dr. Davis practiced emergency medicine for 10 years before entering the oncology residency program at Veterinary Cancer Group in 2004. Having completed her residency in April 2006, her emergency experience is still called upon when one of our patients present in a crisis.

Dr. Davis and her husband share their home with her three-legged German Shepherd, Paco, and their adorable canine mix, Kalik. In her free time, Dr. Mary Davis enjoys traveling, spending time outdoors either hiking or bicycling, and entertaining friends. Dr. Davis is a wonderful communicator and teacher, which benefits both Veterinary Cancer Group staff during daily rounds and the referring veterinary community as she frequently appears at City of Angels Continuing Education events.

Avenelle Turner, DVM, DACVIM, Oncology

Dr. Avenelle Turner, Board-Certified Veterinary Oncologist, became a part of the Veterinary Cancer Group Team in March 2010. Having relocated from New York City to join us, Dr. Turner enjoys the unique "Power of the Group" philosophy that is employed at Veterinary Cancer Group and finds participating in morning rounds and weekly journal club ways for the varied staff of oncology providers to share important knowledge.

Dr. Turner received her DVM Degree from Colorado State University and completed her internship at Garden State Veterinary Specialists in Tinton Falls, New Jersey. She completed a three-year residency in Medical Oncology at Gulf Coast Veterinary Specialists in Houston, Texas. Dr. Turner has extensive training in oncologic emergencies, clinical pathology, exotic animal oncology, and grief counseling. Her approach to the practice of oncology is compassionate care and strengthening the human-animal bond. Dr. Turner has many personal interests including traveling abroad, reading, baking, and personal fitness. She is the proud parent of two tortoiseshell cats and a Dachshund named Sookie.

Birgette Tan-Coleman, DVM
Practice Limited to Oncology

Dr. Birgitte Tan-Coleman obtained her B.S. in Nutrition from Washington State University and received her Doctorate of Veterinary Medicine from the University of Wisconsin School of Veterinary Medicine. She has been a primary care veterinarian since 1999 in both Wisconsin and the greater Los Angeles area.

While working with small animals in private practice in the San Fernando Valley, Dr. Tan-Coleman developed a keen interest in oncology. As a referring veterinarian, she created a mutually beneficial relationship with the Veterinary Cancer Group, expressing interest in their training program. This gave her the opportunity to be selected as the first oncology intern at City of Angels in 2006, after which she went on to be a part of Veterinary Cancer Group's residency program, which she completed in June 2010. When precious free time appears, Dr. Tan-Coleman enjoys spending time with her husband and their family of cats.

Sara Fiocchi, DVM, DACVIM, Oncology

Dr. Sara Fiocchi earned her DVM degree from the University of Illinois and completed an internship in Small Animal Medicine and Surgery at Texas A&M. The personal loss of two of her own pets to cancer (one to leukemia and the other to lymphoma) drove Dr. Fiocchi to choose to specialize in oncology. More recently, her beloved Great Dane had a cancerous mass removed and is currently taking nutritional supplements and daily oral medication at home.

Dr. Fiocchi's main interests include preventative medicine, nutrition / supplementation and improving the quality of life of her patients and their families. She can be found at many of the pet-related fundraisers and enjoys teaching pet owners about the importance of early detection of cancer. Dr. Fiocchi is a member of the Veterinary Cancer Society, the American and Southern California Veterinary Medical Associations, and has volunteered with the Humane Society's Remote Area Veterinary Services. She completed her residency in oncology in July 2008. In July 2011, Dr. Fiocchi was awarded Diplomate status with the ACVIM, the result of passing some rigourus examinations and publishing a peer-reviewed journal article.

Jarred Lyons, DVM, DACVR

Dr. Lyons received his B.S. from UCLA, his DVM degree from the University of California at Davis, and did an internship at VCA West Los Angeles. He completed a residency in radiation oncology at North Carolina State University in conjunction with Duke University and the University of North Carolina.

Dr. Lyons joined Veterinary Cancer Group in January of 2007. His special interests include medical oncology, exploring alternative therapy using radiation, and palliative radiation therapy to improve the quality of life for end stage cancer patients.

Patrick Mahaney, VMD, CVA

Having joined Veterinary Cancer Group Los Angeles in December 2010, Dr. Mahaney is the newest addition. A University of Pennsylvania School of Veterinary Medicine alumni, Dr. Mahaney then went on to become Certified in Veterinary Acupuncture. His experience combining traditional veterinary practice with Eastern wisdom and treatment modalities over the years made him a natural fit for many of Veterinary Cancer Group's patients. Pets afflicted with cancer often benefit from holistic supplements to help strengthen the system; as well acupuncture has been a staple for patients dealing with any discomfort or other conditions that may develop as diseases progress. Dr. Mahaney strongly believes that many canine and feline ailments can be better managed by incorporating both Western and Eastern treatments. In addition to caring for our cancer patients, Dr. Mahaney is available at our Culver City office to tend to patients needing acupuncture for non-cancer related ailments. Dr. Mahaney resides in West Hollywood with his Welsh terrier, Cardiff. They both enjoy canyon hiking and running on the beach.